Maintenance sealing structure

A technology for overhauling seals and gaskets, which is applied in the direction of engine seals, bellows, mechanical equipment, etc., can solve the problems of not fully exerting the sealing function, and achieve the effects of reducing the number of parts, good sealing performance, and easy installation and maintenance

Inactive Publication Date: 2007-03-21
中国船舶重工集团公司第七〇三研究所
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Problems solved by technology

This kind of mechanical seal is only suitable for the end face seal with relative rotation, an

Method used

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  • Maintenance sealing structure
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Embodiment Construction

[0020] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0021] Combined with Figure 1 and Figure 2-8 at the same time, the composition of the maintenance sealing structure includes bellows, the bellows include working bellows 3 and sealing bellows 4, and the two ends of the working and sealing bellows are respectively connected by sub-arc welding On the supporting flange 1 and the moving flange 5, a sealing ring 7 is installed on the moving flange, the sealing ring is made of polytetrafluoroethylene, and the supporting flange is installed on the On the bearing support, there is a gas transmission channel communicated with the sealing chamber between the working bellows and the sealing bellows on the supporting flange. A support flange gasket 2 is arranged between the support flange and the bearing support. Have spring 6 on the mobile flange. There are two gas transmission channels, which are symmetrically distributed...

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Abstract

The present invention provides an inspection seal structure. It includes corrugated pipe, said corrugated pipe includes working corrugated pipe and seal corrugated pipe, two ends of said working corrugated pipe and seal corrugated pipe are respectively connected on the supporting flange and moving flange, on the moving flange a sealing ring is mounted, said supporting flange is mounted on the bearing support abutment, and on the supporting flange a gas transmission channel is set, said gas transmission channel is communicated with seal cavity between the working corrugated pipe and seal corrugated pipe. The invented inspection seal structure utilizes two internally-externally cover-mounted metal corrugated pipes to form seal cavity, only on the supporting flange two symmetrical gas transmission channels are set, the air admission can be implemented.

Description

(1) Technical field [0001] The invention relates to a sealing structure, in particular to a maintenance sealing device suitable for static sealing of two different chambers. (2) Background technology [0002] At present, bellows are mostly used in contact mechanical seals. The mechanical seal is produced on the contact surface (end surface) of the rotating moving ring and static ring by the pressure of the elastic member (bellows or bellows and spring assembly) and the sealing medium. Appropriate pressing force makes the two end faces closely fit to play a sealing role. This kind of mechanical seal is only suitable for the end face seal with relative rotation, and the bellows is only used as an elastic member, and its sealing function is not fully exerted. (3) Contents of the invention [0003] The purpose of the present invention is to provide an inspection sealing structure that can perform end face sealing as required. [0004] The object of the present invention is a...

Claims

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Application Information

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IPC IPC(8): F16J3/04F16J15/52
Inventor 温凤春王旭霍妍妍
Owner 中国船舶重工集团公司第七〇三研究所
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